2263864 has 16 divisors (see below), whose sum is σ = 4344120. Its totient is φ = 1105440.

The previous prime is 2263861. The next prime is 2263879. The reversal of 2263864 is 4683622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947 + ... + 3634.

2^2263864 is an apocalyptic number.

It is an amenable number.

2263864 is a deficient number, since it is larger than the sum of its proper divisors (2080256).

2263864 is a wasteful number, since it uses less digits than its factorization.

2263864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630 (or 6626 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 2263864 is about 1504.6142362745. The cubic root of 2263864 is about 131.3056592353.

The spelling of 2263864 in words is "two million, two hundred sixty-three thousand, eight hundred sixty-four".